With the rounded corners this looks more like a (misplaced) widget. My KDE knowledge is a bit dated, so I can't tell you what exactly to do, but I would unlock the desktop (I think its call "Activity") [back in the old days the peanut in the top-right corner could do that] and try to move this widget so that you can reach the control elements.

I don't know where it comes from - it shouldn't come from a package installation though. More likely a "sideeffect" of some "wrong" keypresses or drag and drop (like wanted to drop an image into the trash, but dropped on the desktop which creates a image-display-widget which you didn't noticed, you just thought the dropping didn't work so you did it again and this time it reached the trash – aka, no image to display in the widget anymore: black box.)

_________________MfG. DonKult
"I never make stupid mistakes. Only very, very clever ones." ~ The Doctor

maurizio

Post subject:Posted: 18.12.2012, 08:37

Joined: 2012-12-05
Posts: 53
Location: Italy
Status: Offline

Removed partitionmanager, didn't work.
Also checked for some widget but seems like no widget is working.
Before starting this post, I even removed the panel, and created a new one, but it was black again.

- removed the panel
- removed /var/tmp/kdecache-user
- logged out
- logged in
- created a new panel

but still the panel is black.

maurizio

Post subject:Posted: 18.12.2012, 09:02

Joined: 2012-12-05
Posts: 53
Location: Italy
Status: Offline

Did it!
I went to:
settings>system settings>workspace appearance>Desktop theme>
and selected <air> theme.
But...
now after removing /var/tmp/kdecache-user I got the typical kde menu. Do you know how to get back to the original one of Aptosid?
Sorry, but I forgot to backup /var/tmp/kdecache-user!

maurizio

Post subject:Posted: 18.12.2012, 09:26

Joined: 2012-12-05
Posts: 53
Location: Italy
Status: Offline

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bfree

Post subject:Posted: 18.12.2012, 12:25

Team Member

Joined: 2010-08-26
Posts: 261

Status: Offline

Just right click on the button for it on the panel and it gives you the option to switch it's style.

maurizio

Post subject:Posted: 18.12.2012, 15:58

Joined: 2012-12-05
Posts: 53
Location: Italy
Status: Offline

Good!
Sometimes things wich look difficult are pretty simple instead!
I would put <solved> on this thread, but I cant find how.
Thanks a lot for your help!